package com.wyp168.gulimall.product.exception;

import com.wyp168.common.exception.BizCodeException;
import com.wyp168.common.utils.R;
import lombok.extern.slf4j.Slf4j;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;

import java.util.HashMap;
import java.util.Map;


/**
 * 集中处理所有异常
 */
@Slf4j
@RestControllerAdvice(basePackages = "com.wyp168.gulimall.product.controller")
public class GulimallExceptionControllerAdvice {
    @ExceptionHandler(value = MethodArgumentNotValidException.class)
    public R handleVaildException(MethodArgumentNotValidException e) {
        log.error("数据校验出现异常:{}\n异常类型:{}", e.getMessage(), e.getClass());
        BindingResult bindingResult = e.getBindingResult();
        Map<String, String> errorMap = new HashMap<>();
        bindingResult.getFieldErrors().forEach(fieldError -> {
            errorMap.put(fieldError.getField(), fieldError.getDefaultMessage());
        });
        return R.error(BizCodeException.VALID_EXCEPTION.getCode(), BizCodeException.VALID_EXCEPTION.getMsg()).put("data", errorMap);
    }

    @ExceptionHandler(value = Throwable.class)
    public R handleException(Throwable throwable) {
        log.error("未知的异常: {}\n{}", throwable.getMessage(), throwable.getCause());
        return R.error(BizCodeException.UNKONE_EXCEPTION.getCode(), BizCodeException.UNKONE_EXCEPTION.getMsg());
    }
}
